diff --git a/.gitignore b/.gitignore
index 92cc732..91ad88b 100644
--- a/.gitignore
+++ b/.gitignore
@@ -66,6 +66,7 @@ subprojects/googletest-1.15.2/
 subprojects/opat-core/
 subprojects/pybind11*/
 subprojects/packagecache/
+subprojects/hypre/
 
 .vscode/